// 鼠标放到首发歌曲图片上是显示描述的文字
function sf1(){
  let img1 = document.getElementById("img1");
  img1.style.display = "block";
}
function xs1(){
  let img1 = document.getElementById("img1");
  img1.style.display = "none";
}

function sf2(){
  let img2 = document.getElementById("img2");
  img2.style.display = "block";
}
function xs2(){
  let img2 = document.getElementById("img2");
  img2.style.display = "none";
}

function sf3(){
  let img3 = document.getElementById("img3");
  img3.style.display = "block";
}
function xs3(){
  let img3 = document.getElementById("img3");
  img3.style.display = "none";
}
function sf4(){
  let img4 = document.getElementById("img4");
  img4.style.display = "block";
}
function xs4(){
  let img4 = document.getElementById("img4");
  img4.style.display = "none";
}
function sf5(){
  let img5 = document.getElementById("img5");
  img5.style.display = "block";
}
function xs5(){
  let img5 = document.getElementById("img5");
  img5.style.display = "none";
}